RhumbLine Advisers’s Masimo MASI Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $23.1M | Buy |
129,619
+5,063
| +4% | +$795K | 0.02% | 646 |
|
|
2025
Q4 | $16.2M | Sell |
124,556
-2,052
| -2% | -$294K | 0.01% | 825 |
|
|
2025
Q3 | $18.7M | Sell |
126,608
-888
| -0.7% | -$134K | 0.02% | 760 |
|
|
2025
Q2 | $21.4M | Buy |
127,496
+4,685
| +4% | +$748K | 0.02% | 670 |
|
|
2025
Q1 | $20.5M | Sell |
122,811
-1,562
| -1% | -$271K | 0.02% | 678 |
|
|
2024
Q4 | $20.6M | Sell |
124,373
-2,641
| -2% | -$417K | 0.02% | 682 |
|
|
2024
Q3 | $16.9M | Sell |
127,014
-759
| -0.6% | -$88.1K | 0.02% | 798 |
|
|
2024
Q2 | $16.1M | Sell |
127,773
-5,359
| -4% | -$706K | 0.02% | 795 |
|
|
2024
Q1 | $19.6M | Sell |
133,132
-4,819
| -3% | -$622K | 0.02% | 721 |
|
|
2023
Q4 | $16.2M | Sell |
137,951
-4,578
| -3% | -$427K | 0.02% | 794 |
|
|
2023
Q3 | $12.5M | Sell |
142,529
-16,455
| -10% | -$1.92M | 0.01% | 883 |
|
|
2023
Q2 | $26.2M | Buy |
158,984
+9,627
| +6% | +$1.68M | 0.03% | 508 |
|
|
2023
Q1 | $27.6M | Buy |
149,357
+2,366
| +2% | +$399K | 0.03% | 461 |
|
|
2022
Q4 | $21.7M | Buy |
146,991
+6,206
| +4% | +$854K | 0.03% | 549 |
|
|
2022
Q3 | $19.9M | Sell |
140,785
-2,998
| -2% | -$438K | 0.03% | 527 |
|
|
2022
Q2 | $18.8M | Buy |
143,783
+7,802
| +6% | +$1.04M | 0.03% | 567 |
|
|
2022
Q1 | $19.8M | Buy |
135,981
+879
| +0.7% | +$169K | 0.03% | 587 |
|
|
2021
Q4 | $39.6M | Buy |
135,102
+2,476
| +2% | +$705K | 0.05% | 334 |
|
|
2021
Q3 | $35.9M | Sell |
132,626
-2,417
| -2% | -$655K | 0.05% | 340 |
|
|
2021
Q2 | $32.7M | Buy |
135,043
+1,185
| +0.9% | +$270K | 0.04% | 385 |
|
|
2021
Q1 | $30.7M | Sell |
133,858
-3,896
| -3% | -$979K | 0.04% | 395 |
|
|
2020
Q4 | $37M | Sell |
137,754
-3,449
| -2% | -$860K | 0.05% | 316 |
|
|
2020
Q3 | $33.3M | Sell |
141,203
-4,187
| -3% | -$939K | 0.05% | 320 |
|
|
2020
Q2 | $33.1M | Buy |
145,390
+14,737
| +11% | +$3.23M | 0.06% | 307 |
|
|
2020
Q1 | $23.1M | Sell |
130,653
-1,019
| -0.8% | -$175K | 0.05% | 344 |
|
|
2019
Q4 | $20.8M | Sell |
131,672
-991
| -0.7% | -$149K | 0.03% | 474 |
|
|
2019
Q3 | $19.7M | Sell |
132,663
-2,175
| -2% | -$330K | 0.04% | 448 |
|
|
2019
Q2 | $20.1M | Buy |
134,838
+1,594
| +1% | +$219K | 0.04% | 442 |
|
|
2019
Q1 | $18.4M | Buy |
133,244
+1,744
| +1% | +$219K | 0.04% | 471 |
|
|
2018
Q4 | $14.1M | Buy |
131,500
+36,927
| +39% | +$4.12M | 0.03% | 547 |
|
|
2018
Q3 | $11.8M | Sell |
94,573
-1,940
| -2% | -$215K | 0.02% | 619 |
|
|
2018
Q2 | $9.42M | Buy |
96,513
+4,554
| +5% | +$433K | 0.02% | 709 |
|
|
2018
Q1 | $8.09M | Sell |
91,959
-6,693
| -7% | -$583K | 0.02% | 762 |
|
|
2017
Q4 | $8.37M | Sell |
98,652
-8,878
| -8% | -$770K | 0.02% | 780 |
|
|
2017
Q3 | $9.31M | Buy |
107,530
+16,953
| +19% | +$1.5M | 0.02% | 706 |
|
|
2017
Q2 | $8.26M | Buy |
90,577
+2,919
| +3% | +$268K | 0.02% | 721 |
|
|
2017
Q1 | $8.18M | Buy |
87,658
+27,015
| +45% | +$2.22M | 0.02% | 736 |
|
|
2016
Q4 | $4.09M | Buy |
60,643
+1,588
| +3% | +$97.6K | 0.01% | 1042 |
|
|
2016
Q3 | $3.51M | Buy |
59,055
+3,492
| +6% | +$197K | 0.01% | 1078 |
|
|
2016
Q2 | $2.92M | Sell |
55,563
-180
| -0.3% | -$8.48K | 0.01% | 1134 |
|
|
2016
Q1 | $2.33M | Buy |
55,743
+1,050
| +2% | +$39.5K | 0.01% | 1263 |
|
|
2015
Q4 | $2.27M | Buy |
54,693
+3,845
| +8% | +$157K | 0.01% | 1278 |
|
|
2015
Q3 | $1.96M | Buy |
50,848
+1,277
| +3% | +$52.2K | 0.01% | 1330 |
|
|
2015
Q2 | $1.92M | Sell |
49,571
-3,500
| -7% | -$125K | 0.01% | 1443 |
|
|
2015
Q1 | $1.75M | Buy |
53,071
+4,375
| +9% | +$126K | 0.01% | 1494 |
|
|
2014
Q4 | $1.28M | Sell |
48,696
-4,730
| -9% | -$117K | ﹤0.01% | 1634 |
|
|
2014
Q3 | $1.14M | Sell |
53,426
-1,290
| -2% | -$29.5K | ﹤0.01% | 1675 |
|
|
2014
Q2 | $1.29M | Sell |
54,716
-32,965
| -38% | -$818K | ﹤0.01% | 1665 |
|
|
2014
Q1 | $2.4M | Sell |
87,681
-1,850
| -2% | -$52.8K | 0.01% | 1234 |
|
|
2013
Q4 | $2.62M | Buy |
89,531
+1,585
| +2% | +$44.4K | 0.01% | 1196 |
|
|
2013
Q3 | $2.34M | Buy |
87,946
+254
| +0.3% | +$6.26K | 0.01% | 1239 |
|
|
2013
Q2 | $1.86M | Buy |
+87,692
| New | +$1.84M | 0.01% | 1352 |
|
Other funds holding MASI
PCM
PCM
HI
VCM
VPM
RhumbLine Advisers's MASI Position: Q1 2026 in Review
RhumbLine Advisers increased its Masimo (MASI) stake by 4.1% in Q1 2026, buying an estimated $795K and bringing the position to 129,619 shares worth $23.1M. The position accounts for 0.02% of the portfolio, ranked #646.
RhumbLine Advisers first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. The position peaked at $39.6M in Q4 2021. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.
- RhumbLine Advisers held 129,619 shares of Masimo worth $23.1M as of Q1 2026.
- RhumbLine Advisers bought 5,063 Masimo shares in Q1 2026, an estimated $795K.
- Masimo made up 0.02% of RhumbLine Advisers's portfolio in Q1 2026, its #646 holding.
- RhumbLine Advisers first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
- RhumbLine Advisers's Masimo position peaked at $39.6M in Q4 2021.
- 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.
Based on RhumbLine Advisers's 13F filing for Q1 2026, filed 12 May 2026.